I released a new version of Chrome Nanny that incorporated few requested features. They are:
1. Validate regular expressions when they are entered in blockset.
2. More robust error handling inside the extension.
3. Always allow access to Chrome extension links even if you block *.*
4. Disallow *.* from White list.
6. Multiple internal changes that will allow implementation of other Chrome Nanny features faster.
Let me know how this version works !